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Subject: address not listed for hostname warning
From: Ralf Hildebrandt (R.Hildebrandttu-bs.de)
Date: Thu Feb 17 2000 - 02:06:55 CST

Hi!

For some hosts I get the following messages in the log:

Feb 16 09:25:04 vivaldi postfix/smtpd[22781]: warning: 132.231.1.200: address not listed for hostname dodgers.fmi.uni-passau.de
Feb 16 09:25:04 vivaldi postfix/smtpd[22781]: connect from unknown[132.231.1.200]
Feb 16 09:25:04 vivaldi postfix/smtpd[22781]: 9A84730C01: client=unknown[132.231.1.200]

dodgers.fmi.uni-passau.de. 2d11h21s IN A 132.231.10.1
dodgers.fmi.uni-passau.de. 2d11h21s IN A 132.231.1.200

1.10.231.132.in-addr.arpa. 1d11h14s IN PTR dodgers.fmi.uni-passau.de.
200.1.231.132.in-addr.arpa. 3H IN PTR dodgers.fmi.uni-passau.de.

and

Feb 16 16:53:21 vivaldi postfix/smtpd[28108]: warning: 141.2.20.2: address not listed for hostname hera.rbi.informatik.uni-frankfurt.de
Feb 16 16:53:21 vivaldi postfix/smtpd[28108]: connect from unknown[141.2.20.2]
Feb 16 16:53:22 vivaldi postfix/smtpd[28108]: 372E430C02: client=unknown[141.2.20.2]

hera.rbi.informatik.uni-frankfurt.de. 7h4m18s IN A 141.2.1.1
1.1.2.141.in-addr.arpa. 1D IN PTR hera.rbi.informatik.uni-frankfurt.de.

While this happens frequently with the first box (dodgers), I first thought
this might be due to the two IP adresses. 

-- 
Ralf Hildebrandt <R.Hildebrandttu-bs.de> www.stahl.bau.tu-bs.de/~hildeb
From empirical experience, your Exchange admin needs to put down the
crack pipe and open a window to disperse the fumes.